Questions tagged [gpu]

A graphics processing unit (GPU) is a specialized electronic circuit designed to rapidly manipulate and alter memory to accelerate the rendering or output images.

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GPU Rendering Stopped Working

I was using GPU CUDA rendering with Cycles and it was working fine, but part way through the render it stopped working and I had to continue the render with the CPU. Now the "GPU Compute" option in ...
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1k views

Does Blender Cycles support rendering in SLI mode - two and more graphics cards?

Can we make SLI bridge between our graphics cards for a faster rendering on blender Cycles renderer? I saw on the blender version 2.79.4 we can faster render on 64*64 render tile on CPU and GPUs, ...
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885 views

Blender detects 2 gpu's but only renders on 1

i have 2 Gtx 1080 Ti's gpu's and both are shown in the User Preferences->System TAB but while rendering it only shows 1 tile. The issue occured some days ago and before that it worked fine with 2 ...
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2answers
5k views

Will EEVEE be able to do real time ray tracing? [closed]

I heard about NVIDIA's announcement about real-time ray tracing - I want to know, will Blender support this in the future? That is, will you be able to see things real-time ray traced (that is to say, ...
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1answer
509 views

Blender is not using CUDA, aulthough it is configured to do so

I'm using Pop!_OS 17.10 (based on Ubuntu 17.10) on a Dell XPS 15 9560 and Blender 2.79b. CUDA is installed, the Nvidia GPU (GeForce GTX 1050) activated and Blender is recognising both: But when I hit ...
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1answer
2k views

Scene complexity and VRAM

I'm going to build my new workstation/rendermachine and im stuck with the question: "how much vram do i actually need?" More gpu accelerate the rendering process, but the max vram load is given by ...
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604 views

Blender 2.79b not using full AMD GPU (RX550)

I think I may have solved the problem. GPU Usage is still really low but buffering is much better after creating a proxy for the video stipe. I am having an issue rendering & skimming through ...
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1answer
285 views

Using GPU outside of rendering in background mode

Is there any way to use your GPU outside of rendering? I'm using blender to generate and change objects with python in background mode. The resulting scene is never actually rendered, just exported to ...
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2answers
220 views

GTX 970 and GTX1080 non-SLI

I'm attempting to run my Windows 10 Pro machine with both my 1080 and 970. As soon as I try to start blender I get the infamous "Error: EXCEPTION_ACCESS_VIOLATION". I've ran Blender with both cards ...
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0answers
223 views

Successive Frames Take Longer and Longer to Render

I have an unusual problem. I render a frame and it takes 1:46. Seven frames later it takes 2:18 to render a frame. Fifteen frames later it takes 2:34. After a few hours of rendering it takes over 5 ...
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1answer
261 views

Does Blender work on IntelHD 4000

I just wanted to know if I need a high graphics card by that I mean like GTX 1000 etc. Because if I want to make a high graphics animation then I would need a high graphics card right?
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397 views

Crashes 2.79 (GPU)

I have a problem with crashes Blender 2.79 (2.79a, 2.79b and new "experimental") when I want to switch to rendered viewport shading (permanently) and/or add a material (frequently) with Cycles render ...
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353 views

CUDA Timeout Error

I am getting an error message that does not allow me to render my file using my GPU. Please Help! "cuda error at cuctxcreate: launch exceeded timeout" UPDATE: I thought I solved the problem but it ...
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0answers
194 views

Using GPU rendering on old AMD GPU

My system config are as follows: Processor: i386 GPU: AMD Cedar (Mobility Radeon card 5k series) on a laptop Blender Ver.: 2.79 OS: Windows XP 32bit( has Blender 2.76)/ Xubuntu 17.10 (blender ...
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210 views

Cycles gpu rendering opencl freezing

I have been learning blender for the past month and today i have found out how to enable GPU rendering but when switching from CPU to GPU compute my computer freezes. here are my specs: CPU: Intel ...
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1answer
403 views

Blender acting weird and crashing when GPU-rendering

I've been using Blender actively for a few years, but after i got my new 1080 it's been acting pretty weird. When i start rendering in cycles "panels" starts turning or flickering black, and other ...
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43 views

Blender Cycles gives black rendering when using GPU and saved as OpenEXR [closed]

So I tried rendering a scene that I made for a school project. I have a tight deadline so I rendered it with two windows of Blender open, 1 rendering with CPU and the other with GPU. The renders were ...
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2answers
577 views

Denoising not working with GPU

I have this problem, when I try to enable denoising when rendering with my GPU only I get a completely black rendering. When I render with CPU+GPU I get black tiles. I´m running Blender on an iMac ...
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1answer
237 views

Pair Of Pro Duo for a Blender workstation

I am building a new workstation solely for working in Blender & am wondering if Blender would recognize and utilize 2 x Pro Duo. AMD Pro Duo description: https://pro.radeon.com/en/product/pro-...
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1answer
550 views

Quadro 2000 + Ryzen 5 1600x

Quite silly and probably will get a quick reply. Started playing with Blender 2,78 a bit lately, mostly for fun. While I quite quickly hit how slow some things render with any CPU. (I have a Ryzen 5 ...
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0answers
73 views

Black areas when rendering in Radeon 7870 GPU [duplicate]

Hello everyone, I have a problem with the GPU (msi radeon hd 7870 2gb oc edition), practically in some scenes the rendering with the gpu form some black parts, which are not shown if I render the same ...
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1answer
1k views

Can't use Radeon GPU to render in cycles (R9 270)

In the settings I can't choose another device to render other than the CPU. According to the blender wiki the GPUs "with a GCN Architecture superior or equal to 2.0 are supported". And as I ...
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5answers
1k views

Blender using wrong GPU for 3D View (This is not about Rendering)

I'm using two graphic cards in my system. I have recently replaced an old AMD gpu with a GT 710. Now blender is using the GT 710 instead of the much more powerful GTX 760. Blender now is painfullly ...
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0answers
340 views

Windows 10 with Blender won't change gpu percentage during rendering

I have built a new Desktop PC with an unactivated version of Windows 10 to run with Blender and haven't gotten it to fully work yet. I've downloaded the latest Nvidia drivers from Nvidia's GeForce ...
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237 views

Accelerated GPU Batch Rendering (Why no boost in speed?)

Hey there Blender Community, I have a python script set up that allows me to iteratively render animations with minor adjustments each time I render. Effectively, the script sets up a scene, then ...
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1answer
3k views

Setting GPU rendering: CVMCompiler has now run for 5 hours

I've got an AMD 6750M graphics card with 1 GB of VRAM and Blender 2.79. I successfully selected the card as a GPU target in the user preferences. When starting my render, Blender says: ...
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1answer
5k views

Blender 2.79 BMW Benchmark GPU very slow on GTX 1080

This is my first question/post on Blender Stack Exchange, please forgive mistakes. I recently run the Blender BMW GPU Benchmark in Blender 2.79. My PC specs are: 64gb of DDR4 Ram i7-8700k GTX-1080 ...
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1answer
339 views

Rendered tiles don't show

Rendered tiles don't show up, until after its done rendering. When the whole image is ready, it shows the final image. Did I miss something?
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1answer
879 views

When rendering with GPU Compute, GPU doesn't seem to work that much harder

For some reason, my rx 470 graphics card which is great for gaming and so on, cannot render faster than my intel i5 processor. Why is this? Wouldn't GPU Compute make things run faster. And, if that ...
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0answers
236 views

Blender 2.79 doesn't detect my AMD GPU 270X

As described in the title Blender doesn't detect my GPU, it's an AMD Readeon R9 270x. I tried to install an older version of CCC but that didn't work too. There is one Strange thing at "OpenGl-...
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0answers
37 views

How eager Blender is about the GPU?

Just got my Fedora upgraded to version 27 and running there Blender 2.79. While using it I have faced a bit bad UI (it is not following what I'm selecting) or the who screen gets messy. See the exaple:...
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1answer
371 views

How can I solve GPU rendering issue? [closed]

I have a AMD r7 370 GPU, and an Intel i5 4460 CPI. I am using blender 2.78 (openCL enabled, downloaded from GraphicAll). My problem is I can't get the original color and output from GPU rendering, ...
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0answers
97 views

cuCtxCreate: Invalid device with two different Nvidia cards

cuCtxCreate: Invalid device with two different Nvidia cards I'm running Ubuntu 14.04 with Nvidia drivers 375.66 installed from the Nvidia site. I've got two cards: a GeForce GTX 560 and a GeForce GTX ...
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1answer
1k views

Render very slow using GPU from Radeon Sapphire RX 580 vs CPU

After installing Blender in Windows 10 and configuring the cycles compute device to use OpenCL with Radeon RX 580 Series, the render using cycles and GPU Compute takes much more time tan single CPU ...
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1answer
499 views

Why is the 'GPU compute' render option blurred out for me? [duplicate]

I think it would be faster to render with my gpu, but I can't seem to select it. My GPU is an MSI gtx 1050 ti
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40 views

Same GPU, different manufacturer [duplicate]

I have an NVidia 1080 ti and would like to add a second. It looks like the only thing on the NVidia site is the Founder's Edition - and they're unavailable. So my question is: Would a 1080 ti made ...
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1answer
385 views

When should i use GPU if im rendering on cycles?

Here is my setup: OS: Windows 8.1 x64 CPU: Intel Core i7-4702MQ @2.2 GHz GPU: Nvidia GTX 750M Almost 100% of my renders have been done on CPU because every time I try to render on GPU (knowing I'm ...
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1answer
1k views

How fast can a gtx 1080 TI run out of memory?

I want to buy a new desktop for Blender and I would like to bet on the graphics card. However, I don’t understand how it renders animations. Is the memory used per frame or per animation as a whole? ...
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0answers
403 views

Blender very slow after upgrading to windows 10

So I recently did an upgrade on my old laptop. Its a very weak laptop with a ATI Mobility Radeon 3400 but blender always ran pretty well on it. Now after upgrading to windows 10 blender first said ...
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0answers
800 views

cycles compute device shows as “none” [duplicate]

i had graphic card of nividia gforce210 but while I want to enable gpu in cycle render then it show the "none" in cycle computer device please help me.
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1answer
1k views

CUDA & OpenCL GPUs compatibility in Cycles

I would like to add second GPU to my rig (currently I have GTX 1070). My budget allows two options: 1070 ti or Vega 64 (which seems to be much faster in Cycles) The question is: can a CUDA based GPU ...
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0answers
138 views

Fastest way to move image pixels between Blender and GPU memory?

I want to cudaMemcpy directly into bpy.data.images["my_image"].pixels, is that possible? Right now I am doing this, and it is ...
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0answers
73 views

Getting a second GPU to speed up rendering times in Cycles [duplicate]

I don’t know much about hardware so, please, be gentle! I’m thinking of getting a second GPU to cut (Blender Cycles) rendering times in half. After some research I found out that: each GPU renders ...
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2answers
294 views

Rendering with gpu crashed

Does anyone know why this happened? I was rendering at 1000 samples on a gtx 1070 and the rendering crashed saying "CUDA error: Out of memory in cuCtxSynchronize(), line 1372"
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1answer
762 views

Budget gaming PC as render farm?

Admittedly, I am not very knowledgeable of hardware, but I am trying to put together a cheap render farm using the following with my Lenovo Y50 gaming laptop: GPU: 2X Nvidia GeForce GTX 1050 Ti CPU: ...
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0answers
265 views

Cycles crashing w/ GPU render, deleting any normal maps fixes it, but why? [closed]

Cycles has been crashing upon trying to render an image when using my GPU, but the Rendered 3D Viewport works fine. I've tried with both high and low render settings (i.e. changing the resolution, ...
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0answers
301 views

Unable to find CUDA in user preferences for version 2.79

I'm trying to find CUDA for GPU rendering in the user preferences and all it shows is this: How can I fix this? My computer is a Lenovo Y50 and the GPU is Nvidia GeForce GTX 860M. Is my GPU no ...
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1answer
736 views

Blender settings and Windows drivers for OpenCL rendering

I recently got a Radeon RX Vega 64, first time AMD GPU user, so I'm not quite sure how to set Blender up for it and/or the drivers I'll have to have installed in order for it to work correctly. So ...
7
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4answers
977 views

Configuring .blend file for remote machine GPU rendering

I would like to render an animation on a remote compute cluster with several GPUs. The machine I configure the .blend file on is a laptop on which I cannot enable the User Settings>System GPU compute ...
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1answer
1k views

CUDA compilation failed

When I try to render with the Cycles render on my GPU I'll get a message which says that my CUDA compilation failed and I get this error in the console; ...